Wow LOL... That sounds all too familiar! I had to pump filter water for a crew of 5, including myself, for 5 days. I don't know how or why I ended up doing it every time, but I swear my arm felt like it was about to fall off towards the end of the trip. Talk about a workout. This lead to using other techniques. First, gravity filters, then chemicals. I'm gonna have to try some of these Chlorine Dioxide tabs. I think they might be a good option for me.

Eric